25
CAUSE
CORRECTIVE ACTION
PROBLEM
The supply pressure is too high
The flow rate is too high
There are blockages or deposits
in the domestic hot water circuit
The pump is malfunctioning
Little hot water
is produced
Fit a pressure limiter
Fit a flow reducer
Check and clean as necessary
Check the pump
The water temperature is low in
the heat generator or
solar heating system
The pump is malfunctioning
There is lime scale or
sludge in the tank
Water temperature is low
Check the setting and condition
of the thermostat
Check the pump
Check and clean as necessary
There is air in the primary circuit
Bleed the circuit
The water temperature in the heat
generator or solar heating
system is low
The filling pump is malfunctioning
There is air in the circuit
Replenishment times
are too long
Check the setting of the
thermostat
Check the pump
Bleed the circuit
Troubleshooting
TROUBLESHOOTING
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